Mixing-machine.



B. D. PINKNEY.

MIXING MACHINE.

APPLICATION FILED ocr. so. 1917.

Patented June 18, 1918.

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PATENT OFFICE.

BRYAN D. PINKNEY, OF CINCINNATI, OHIO.

MIXING-MACHINE.

Specification of Letters Patent.

Application filed October 30, 1917. Serial No. 199,248.

To all whom it may concern:

Be it known that I, BRYAN D. PINKNEY, a citizen of the United States,residing at Cincinnati, in the county of Hamilton and State of Ohio,have invented a new and useful Mixing-Machine, of which the following isa specification. 7

My invention relates to improvements in mixing machines adapted forusein mixing cake ingredients or other suitable materials; and the objectofmy improvements is to provide a holder for the can, said holder beingpivoted so it can be. swung away from the vertical standard toward thefront of the machine.

I attain this object by the mechanism illustrated in the accompanyingdrawing, in whicht Figure 1 is a side elevation of my improved mixingmachine; Fig. 2, a drawing of the latch mechanism in the normalposition, the vertical raised position being indicated by dotted lines;Fig. 3, a drawing of the latch mechanism with the one side raised to itshighest position, the dotted lines indicating the latch mechanism raisedfrom the opposite side.

Similar numerals refer to similar parts throughout the several drawings.

Referring to the drawings, 1 is the vertical standard at the lower partof which is pivotally mounted the swinging can holder .2, on pivot 3.The can 4 fits loosely in swinging can holder 2, and rotation of the canis prevented by means of lug 5 on the can 4 which fits against a matinglug 6 on the can holder 2. Stud 7 in latch plate 8 fits in acorresponding slot 2 with -taper side pieces 2 in swingin can holder 2to hold the can 4 rigid while the mixing is taking place. Latch plate 8is pivotally mounted on vertical standard 1 by means of slots 9 pivotingon studs 10, said slots 9 being constructed so that the latch plate 8can be pivoted at either side, or can be raised vertically (see Figs. 2and 3). This I accomplish by having the inner face of the slots 9relieved.

As the swinging can holder 2 is being swung to central or working positon, the taper side piece 2* automatically raises the, stud 7, therebyraislng the latch plate 8, and when said swinging can holder is in thecentral or working position the stud 7 automatically drops into the slot2", either by gravity or by mechanical means, and thus locks can 4. Toswing open the swinging can holder 2, either lift or push down handle 8of latch plate 8, and thus raise the stud-7 out of slot 2 so that theswinging can holder 2 may be pivotally swung either to the right ofvertical standard 1 or to the left, as the convenience of the operatordemands. A

Patented June 18, 1918.

pin 11- may be used to limit the outward position of the swinging canholder 2, so that the can 4 does not get into the operators way.

The vertical standard l'is provided with lugs 12 wherein guide rodsl3'are secured.

At the top of vertical standard 1 is a speed box, of any suitabledesign, hence not specified in detail, and a bevel gear cover 14covering the bevel gear 16 and the bevel pinion 15, said bevel gear 16being journaled in the head of the vertical standard 1, and providedwith a spline (not shown in the drawing) which slides in keyway 18 ofvertical sliding shaft 18. A bracket 19 is slidably mounted on guiderods 13, in which said bracket 19 areinternal, teeth 19*. The verticalsliding shaft 18 projects through bracket 19, and at its lower end issecured the whip bracket 20, in which is journaled shaft 21, rigidlyprovided at its upper end with a pinion 22 intermeshing with theinternal teeth 19, and near its. lower end with a rigid Whip driver 23.As the vertical sliding shaft 18 rotates the shaft 21- rotates in aconcentric circle, due to the intermeshing of the teeth of pinion 22with the internal teeth 19, and this is the principle of the so-calledplanetary gearing. Fitting loosely on the end of shaft 21 andinterlocked with the driving slots 23 of whip driver 23 is a whip orbeater 24 of any familiar design,.hence not specified in detail, saidwhip or beater 24 being lowered in or raised out of can 4 by anysuitable means, such as for example, by screw 25 screwed in lug 19", andmounted in the upper part of vertical standard at 1 and actuated bymiter gears 26, shaft 27, and handwheel 28, or any other suitable means.sliding shaft 18 is secured the collar 29, which acts as a thrustbearing at its lower part and as an oil drip at its upper part, for, onaccount of the vertical sliding action, a lubricant is necessary toprevent abrasion.

The speed box is located at the top part of vertical standard 1, andisprovided with a lid 30 for access to the gearing and shift- On verticalchange gear 41 are rigidly secured to speed change shaft 42, at thelower end of. which is rigidly secured the bevel pinion referred to.

The operation of my improved mixing machine is as follows: Theingredients to be mixed are placed in the can 4, and, the power beingapplied to the constant driven shaft 32, on which are speed changegears, of any suitable design, hence not shown in detail, a speed changegear is caused to mesh in eitherspeed gear 40 or 4:1, according. to whatrate of speed is required. For beating up the whites of eggs and similarbatches the highest speed is desirable; for mixing stiff batches theslowest speed is desirable. This causes the speed gear shaft 42 torotate, and the power is transferred to vertical sliding shaft 18through the means of bevel pinion 15, bevel gear 16, and spline 17.Rotation of vertical sliding shaft 18 causes the whip bracket to rotate,and as said whip bracket 20 rotates the pinion 22 is caused to rotatedue to the intermeshing with the internal teeth 19 As pinion 22 rotatesthe shaft 21 also rotates, and so does the whip driver 23 and whip orbeater 24.

It will be noticed that although the whip or beater 24: rotates inrelation to shaft 21, it has also a movement concentric with thevertical sliding shaft 18. This imparts a most thorough mixing andstirring action to the whip or beater. After the batch is mixed thevertical sliding shaft 18 is raised by means of the handwheel 28 andcooperating parts, the whip or heater 24 removed from the whip driver23, and the can swung away from the vertical standard 1 and contentsremoved.

Having thus described m invention, what I claim as new, and desire tosecure by Letters Patent, is-- 1. In a mixing machine, a verticalstandard in combination with a can holder pivoted at the front of themachine so as to swing away from said vertical standard.

2. In a mixing machine, a Vertical standard in combination with a canholder pivoted at the front of the machine so as to swing .away fromsaid vertical standard, a latch plate connected with said verticalstandard, and cooperating latch means connected with said can holder.

In testimony whereof I have hereunto set my hand in presence of twosubscribing wit- K nesses. A

BRYAN D. PINKNEY. Witnesses ED. W. HEOKEL, W. S. BROWN.

